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Ballycastle weather

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Ballycastle weather warnings

Met Office yellow, amber and red warnings for Northern Ireland

Checking the Met Office for warnings in force for Northern Ireland…

Ballycastle weather in numbers

measured normals and 10 years of recorded weather

Ballycastle swings 14°C across the year, from 17°C highs in August to 3°C lows in February, and October is usually the wettest month in a year that brings about 1340 mm of precipitation. Over 10 years of recorded weather it averages 0 days a year at 25°C or above, 5 frost nights, and rain on 216 days.

Warmest month
August
17°C average high
Coldest month
February
3°C average low
Wettest month
October
1340 mm a year
Comfortable
3 months
June, July and August
Residents
5,566
share this forecast
Most accurate here
Met Office
89/100 CheckWeather Score
Warm days
0 days
a year at 25°C or above
Frost nights
5 nights
a year below 0°C
Rain days
216 days
a year with 1 mm or more

Day counts are from the ERA5 reanalysis for Ballycastle’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.

The weather map: all three models at once

Met Office, European, American side by side around Ballycastle and nearby towns.Live rain radar →
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Ballycastle hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Ballycastle 10-day forecast, out to 14 days

where the models agree, and where they split

Ballycastle, Northern Ireland is at its warmest in Aug (average highs near 17°C) and coldest in Feb (lows around 3°C), with roughly 1340 mm of precipitation across the year. Below, compare what Met Office, European, American forecast for Ballycastle right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United Kingdom before you trust any single number.

Ballycastle climate by month

average daytime high and overnight low across a typical year (1991-2020)
Jan
7°
4°
Feb
7°
3°
Mar
8°
3°
Apr
10°
5°
May
12°
7°
Jun
16°
10°
Jul
16°
11°
Aug
17°
12°
Sep
15°
10°
Oct
12°
9°
Nov
9°
5°
Dec
8°
4°

Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.

How the weather around Ballycastle has changed since 1995

Ballycastle sits in the same roughly 50 km square of NASA's reanalysis as Ballymena. That square shows no clear change in temperature between 1995-2004 and 2015-2024. See the full 30-year picture on the Ballymena page.

Which forecast is most accurate in Ballycastle?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
Met Office logo
Met Office ★ Best
89
/100rank #1
90±0.6°C89±3.5 mph8994% hitMet Office (United Kingdom)Exeter, United Kingdom
European logo
European
88
/100rank #2
93±0.4°C90±3.2 mph8290% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
86
/100rank #3
91±0.5°C91±2.8 mph7687% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1950 cities. Lower error means a higher score. See which forecast model is most accurate in United Kingdom, how we measure forecast accuracy, or which model each weather app uses.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United Kingdom? Give each 1 to 5 stars.

Met OfficeUKMO model
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EuropeanECMWF
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AmericanNOAA GFS
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Ballycastle today?
On this page we show what Met Office, European, American each forecast for Ballycastle today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Ballycastle today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Met Office, European, American for Ballycastle and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Ballycastle?
Over the last 30 days, the Met Office model has been the most accurate for Ballycastle (CheckWeather Score 89/100), ahead of the European at 88. We grade every model against the recorded weather. See the UK accuracy scoreboard for the full method.
What is the warmest month in Ballycastle?
August is typically the warmest month in Ballycastle, with average highs around 17°C.
How cold does Ballycastle get?
The coldest month in Ballycastle is February, when overnight lows average about 3°C.
How much rain does Ballycastle get?
Ballycastle sees roughly 1340 mm of precipitation a year, with October usually the wettest month.

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